scholarly journals Comprehensive Analysis of the Immune and Prognostic Implication of MMP14 in Lung Cancer

2021 ◽  
Vol 2021 ◽  
pp. 1-21
Author(s):  
Chun-long Zheng ◽  
Qiang Lu ◽  
Nian Zhang ◽  
Peng-yu Jing ◽  
Ji-peng Zhang ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Signaling Pathway ◽  
Lung Squamous Cell Carcinoma ◽  
Enrichment Analysis ◽  
Cell Receptor ◽  
Risk Scores ◽  
Pathway Enrichment Analysis ◽  
Receptor Signaling ◽  
Immune Infiltration ◽  
Receptor Signaling Pathway

More and more studies have indicated an association between immune infiltration in lung cancer and clinical outcomes. Matrix metalloproteinase 14 (MMP14) has been reported to be dysregulated in many types of tumors and involved in the development and progression of tumors. However, its contribution to cancer immunity was rarely reported. In the study, we found that MMP14 expression was distinctly upregulated in lung cancer specimens compared with nontumor lung specimens. High MMP14 expression predicted a poor prognosis of lung squamous cell carcinoma (LUSC) patients. Increased MMP14 expressions were observed to be positively related to high immune infiltration levels in most of the immune cells. A pathway enrichment analysis of 32 MMP14-associated immunomodulators indicated the involvement of T cell receptor signaling pathway and Toll-like receptor signaling pathway. Based on MMP14-associated immunomodulators, we applied multivariate assays to construct multiple-gene risk prediction signatures. We observed that risk scores were independently associated with overall survival. These data highlighted that MMP14 was involved in tumor immunity, indicating that MMP14 could serve as a novel prognostic biomarker and therapeutic target for lung cancer. Our data suggest that the four genes identified in this study may serve as valuable biomarkers of lung cancer patient outcomes.

scholarly journals Identification of Key Genes and Prognostic Analysis between Chromophobe Renal Cell Carcinoma and Renal Oncocytoma by Bioinformatic Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Hongwei Wu ◽  
Lijing Fan ◽  
Haiping Liu ◽  
Baozhang Guan ◽  
Bo Hu ◽  
...  
Keyword(s):  
Overall Survival ◽  
Signaling Pathway ◽  
Enrichment Analysis ◽  
Cell Receptor ◽  
Renal Oncocytoma ◽  
Receptor Signaling ◽  
Kaplan Meier ◽  
Receptor Signaling Pathway ◽  
Key Genes ◽  
Cell Receptor Signaling

The present techniques of clinical and histopathological diagnosis hardly distinguish chromophobe renal cell carcinoma (ChRCC) from renal oncocytoma (RO). To identify differentially expressed genes (DEGs) as effective biomarkers for diagnosis and prognosis of ChRCC and RO, three mRNA microarray datasets (GSE12090, GSE19982, and GSE8271) were downloaded from the GEO database. Functional enrichment analysis of DEGs was performed by DAVID. STRING and Cytoscape were applied to construct the protein-protein interaction (PPI) network and key modules of DEGs. Visualized plots were conducted by the R language. We downloaded clinical data from the TCGA database and the influence of key genes on the overall survival of ChRCC was performed by Kaplan–Meier and Cox analyses. Gene set enrichment analysis (GSEA) was utilized in exploring the function of key genes. A total of 79 DEGs were identified. Enrichment analyses revealed that the DEGs are closely related to tissue invasion and metastasis of cancer. Subsequently, 14 hub genes including ESRP1, AP1M2, CLDN4, and CLDN7 were detected. Kaplan–Meier analysis indicated that the low expression of CLDN7 and GNAS was related to the worse overall survival in patients with ChRCC. Univariate Cox analysis showed that CLDN7 might be a helpful biomarker for ChRCC prognosis. Subgroup analysis revealed that the expression of CLDN7 showed a downtrend with the development of the clinical stage, topography, and distant metastasis of ChRCC. GSEA analysis identified that cell adhesion molecules cams, B cell receptor signaling pathway, T cell receptor signaling pathway, RIG-I like receptor signaling pathway, Toll-like receptor signaling pathway, and apoptosis pathway were associated with the expression of CLDN7. In conclusion, ESRP1, AP1M2, CLDN4, PRSS8, and CLDN7 were found to distinguish ChRCC from RO. Besides, the low expression of CLDN7 was closely related to ChRCC progression and could serve as an independent risk factor for the overall survival in patients with ChRCC.

scholarly journals Mapping the Multi-Organ miRNA-mRNA Regulatory Network in LPS-Mediated Endotoxemic Mice: Exploring the Shared Underlying Key Genes and Mechanisms

2020 ◽  
Vol 7 ◽  
Author(s):  
Cong Zhang ◽  
Ying Liao ◽  
Zhihao Liu ◽  
Lijin Zeng ◽  
Zhihua Peng ◽  
...  
Keyword(s):  
Signaling Pathway ◽  
Enrichment Analysis ◽  
Organ Damage ◽  
Pathway Enrichment Analysis ◽  
Receptor Signaling ◽  
Toll Like Receptor ◽  
Hub Genes ◽  
Liver And Kidney ◽  
Receptor Signaling Pathway ◽  
Key Genes

BackgroundTo this day, the molecular mechanism of endotoxin-induced multi-organ failure has not been completely clarified. This study aimed to construct an miRNA-mRNA regulatory network and identify main pathways and key genes in multi-organ of LPS-mediated endotoxemic mice.MethodsPublic datasets from six mRNA and three miRNA microarray datasets were downloaded from the GEO website to screen final differentially expressed genes (FDEGs) and hub genes in the heart, lung, liver, and kidney of LPS-mediated endotoxemic mice. Functional and pathway enrichment analysis of FDEGs was used to identify the main pathways in multi-organ damage of LPS-treated mice. Finally, hub genes of each organ were intersected to obtain the key genes of multi-organ.ResultsFirstly, 158, 358, 299, and 91 FDEGs were identified in the heart, lung, liver, and kidney, respectively. The pathway enrichment analysis of the FDEGs then showed that the TNF signaling pathway, Toll-like receptor signaling pathway, and some viral-infection-related pathways (influenza A, measles, and herpes simplex) were the main pathways in multi-organ damage of LPS-mediated endotoxemic mice. Moreover, miRNA-mRNA or PPI regulatory networks were constructed based on FDEGs. According to these networks, 31, 34, 34, and 31 hub genes were identified in the heart, lung, liver, and kidney, respectively. Among them, nine key genes (Cd274, Cxcl1, Cxcl9, Icam1, Ifit2, Isg15, Stat1, Tlr2, and Usp18) were enriched in Toll-like receptor signaling pathway and chemokine signaling pathway. Finally, seven potential drugs were predicted based on these key genes.ConclusionThe shared underlying molecular pathways in endotoxin-induced multi-organ damage that have been identified include Toll-like receptor signaling pathway and TNF signaling pathway. Besides, nine key genes (Cd274, Cxcl1, Cxcl9, Icam1, Ifit2, Isg15, Stat1, Tlr2, and Usp18) and seven potential drugs were identified. Our data provide a new sight and potential target for future therapy in endotoxemia-induced multi-organ failure.

scholarly journals Identification of Key mRNAs and lncRNAs in Neonatal Sepsis by Gene Expression Profiling

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Lin Bu ◽  
Zi-wen Wang ◽  
Shu-qun Hu ◽  
Wen-jing Zhao ◽  
Xiao-juan Geng ◽  
...  
Keyword(s):  
Signaling Pathway ◽  
Neonatal Sepsis ◽  
Ribosome Biogenesis ◽  
Cell Lineage ◽  
Cell Receptor ◽  
Rna Degradation ◽  
Receptor Signaling ◽  
Nf Kappa B ◽  
Ppi Networks ◽  
Receptor Signaling Pathway

Neonatal sepsis is one of the most prevalent causes of death of the neonates. However, the mechanisms underlying neonatal sepsis remained unclear. The present study identified a total of 1128 upregulated mRNAs and 1008 downregulated mRNAs, 28 upregulated lncRNAs, and 61 downregulated lncRNAs in neonatal sepsis. Then, we constructed PPI networks to identify key regulators in neonatal sepsis, including ITGAM, ITGAX, TLR4, ITGB2, SRC, ELANE, RPLP0, RPS28, RPL26, and RPL27. lncRNA coexpression analysis showed HS.294603, LOC391811, C12ORF47, LOC729021, HS.546375, HNRPA1L-2, LOC158345, and HS.495041 played important roles in the progression of neonatal sepsis. Bioinformatics analysis showed DEGs were involved in the regulation cellular extravasation, acute inflammatory response, macrophage activation of NF-kappa B signaling pathway, TNF signaling pathway, HIF-1 signaling pathway, Toll-like receptor signaling pathway, and ribosome, RNA transport, and spliceosome. lncRNAs were involved in regulating ribosome, T cell receptor signaling pathway, RNA degradation, insulin resistance, ribosome biogenesis in eukaryotes, and hematopoietic cell lineage. We thought this study provided useful information for identifying novel therapeutic markers for neonatal sepsis.

scholarly journals The CARMA1-Bcl10 Signaling Complex Selectively Regulates JNK2 Kinase in the T Cell Receptor-Signaling Pathway

Immunity ◽  
2007 ◽  
Vol 26 (1) ◽  
pp. 55-66 ◽  
Author(s):  
Marzenna Blonska ◽  
Bhanu P. Pappu ◽  
Reiko Matsumoto ◽  
Hongxiu Li ◽  
Bing Su ◽  
...  
Keyword(s):  
T Cell ◽  
Signaling Pathway ◽  
T Cell Receptor ◽  
Cell Receptor ◽  
Receptor Signaling ◽  
Signaling Complex ◽  
T Cell Receptor Signaling ◽  
Receptor Signaling Pathway ◽  
Cell Receptor Signaling

An HSP90 Inhibitor, PU-H71, Antagonizes Stroma-Induced Pro-Survival Effects in CLL through Its Inhibition of Multi-Component B-Cell Receptor Signaling Pathway

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 5289-5289
Author(s):  
Ailin Guo ◽  
Pin Lu ◽  
Chaojie Zhen ◽  
Gabriela Chiosis ◽  
Yue Lynn Wang
Keyword(s):  
B Cell ◽  
Signaling Pathway ◽  
Cell Receptor ◽  
Hsp90 Inhibitor ◽  
B Cell Receptor ◽  
Receptor Signaling ◽  
Bcr Signaling ◽  
Receptor Signaling Pathway ◽  
B Cell Receptor Signaling ◽  
Cell Receptor Signaling

Abstract Background: Chronic lymphocytic leukemia (CLL) is characterized by the accumulation of B-cells in the hematopoietic system. The B-cell receptor (BCR) plays an essential role in the pathogenesis of CLL and many components of the BCR signaling pathway are known clients of HSP90. HSP90 is a highly conserved molecular chaperone that ensures the proper folding and stabilization of its client proteins. In this study, we investigated whether PU-H71 a novel purine-scaffold HSP90 Inhibitor, has anti-tumor activity in CLL by destabilizing BCR signaling pathway constituents. Design: Fresh CLL cells were isolated and cultured ex vivo with or without stromal co-culture. Molecular and cellular events were studied in PU-H71-treated and control CLL cells. Results: Immunoblotting revealed that a significantly higher amount of HSP90 is present in CLL cells than in peripheral blood mononuclear cells (PBMC), suggesting the chaperone is pathogenically relevant. We found that PU-H71 caused the death of CLL cells in a dose and time dependent manner while the viability of either PBMC or normal B lymphocytes were not affected. PU-H71 induced apoptosis resulting in CLL cell death as it caused mitochondrial cytochrome C release and a decrease in the abundance of several anti-apoptotic proteins. Interestingly, PU-H71 has the ability to counteract the pro-survival effects of the stroma and caused apoptosis in CLL cells co-cultured with stroma. To gain mechanistic insights into how PU-H71 acts, we examined the BCR signaling pathway. We found that the amounts of several key components of the pathway were reduced by PU-H71 treatment. This occurred even in the presence of stromal co-culture. The results suggest that PU-H71 antagonizes the function of HSP90 leading to the destabilization of the BCR signaling transducers. A chemical pull-down experiment revealed the co-existence of the BCR components and HSP90 in the same complex, suggesting these BCR constituents are indeed clients of HSP90 in CLL cells. Further, specific genetic knock-down of the signal transducers by siRNA confirmed their key roles in mediating the survival of CLL cells. Conclusions: PU-H71 antagonizes stroma-induced pro-survival effects in CLL through its inhibition of the B-cell receptor signaling pathway. Our results suggest that PU-H71 may serve as a useful therapy against CLL and is worth further clinical development. Disclosures No relevant conflicts of interest to declare.

scholarly journals Study on the Multitarget Mechanism of Sanmiao Pill on Gouty Arthritis Based on Network Pharmacology

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Huiqin Qian ◽  
Qianqian Jin ◽  
Yichen Liu ◽  
Ning Wang ◽  
Yuru Chu ◽  
...  
Keyword(s):  
Molecular Docking ◽  
Signaling Pathway ◽  
Gouty Arthritis ◽  
Network Pharmacology ◽  
Pathway Enrichment Analysis ◽  
Regulation Of Transcription ◽  
Receptor Signaling ◽  
Active Compounds ◽  
Receptor Signaling Pathway ◽  
Compound Target

Sanmiao pill (SMP), a Chinese traditional formula, had been used to treat gouty arthritis (GA). However, the active compounds and underlying mechanism remained unclear. Hence, network pharmacology and molecular docking were utilized to explore bioactive compounds and potential mechanism of action of SMP in treating GA. In the study, the compounds of SMP, corresponding targets, and GA-related targets were mined from various pharmacological databases. Then, herb-compound-target, compound-target, PPI, and target-pathway networks were constructed. Ultimately, molecular docking was carried out to verify the predicted results. The results indicated that 47 active compounds, 338 targets, and 144 disease targets were collected. Network analysis implied that Phellodendron chinense Schneid. played a vital role in the whole formula. Moreover, 7 compounds (quercetin, kaempferol, wogonin, rutaecarpine, baicalein, beta-sitosterol, and stigmasterol) and 4 targets (NFKB1, RELA, MAPK1, and TNF) might be the kernel compounds and targets of SMP against GA. According to GOBP and KEGG pathway enrichment analysis and target-pathway network, SMP might exert a therapeutic role in GA by regulating numerous biological processes and pathways, including lipopolysaccharide-mediated signaling pathway, positive regulation of transcription, Toll-like receptor signaling pathway, JAK-STAT signaling pathway, NOD-like receptor signaling pathway, and MAPK signaling pathway. The results of molecular docking showcased that 11 pairs of compound with targets had tight binding strength. Thereinto, 4 compounds of MAPK1 and 5 compounds of NFKB1 possessed a better combination, suggesting that MAPK1 and NFKB1 might be considered as therapeutic targets in treatment of GA. This study verified that SMP had synergistic effect on GA by multicomponents, multitargets, and multipathways.

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